|Length:||316.36 mi (509.13 km)|
|West end:||I-57 in Pulleys Mill, IL|
|East end:||I-75 in Chattanooga, TN|
Interstate 24 (I-24) is an Interstate Highway in the Midwestern and Southeastern United States. It runs diagonally from I-57, 10 miles (16 km) south of Marion, Illinois, to Chattanooga, Tennessee, at I-75. As an even-numbered Interstate, it is signed as an east–west route, though the route follows a more southeast–northwest routing. Because the routing of I-24 is diagonal, the numbering is a bit unusual as it does not completely follow the Interstate Highway System numbering conventions.
I-24 begins at exit 44A on I-57 in southern Williamson County, near the community of Pulleys Mill. The highway heads southeast into rural Johnson County, bypassing Goreville to the east. It reaches an exit at Tunnel Hill Road, which serves Goreville and Tunnel Hill. The highway continues south to its next exit at U.S. Route 45 (US 45) north of Vienna. It reaches its next exit at Illinois Route 146 (IL 146) in eastern Vienna. I-24 heads southeast from Vienna into Massac County. Its first exit in Massac County is at Big Bay Road, which serves the communities of Big Bay and New Columbia. I-24 continues southward, bypassing the community of Round Knob before entering Metropolis. The highway meets US 45 again in Metropolis and passes west of Fort Massac State Park. It leaves Metropolis to the south by crossing the Interstate 24 Bridge over the Ohio River, continuing into Kentucky.
I-24 crosses into Kentucky on a bridge over the Ohio River, passing to the west of the city of Paducah and intersecting US 60, US 45, and US 62. The freeway then passes near the communities of Woodlawn-Oakdale and Reidland, and connects with US 68. East of this point, I-24 runs concurrently with I-69, intersecting US 62 and crossing the Tennessee River and the Cumberland River. The roadway travels along the north shore of the Cumberland River as I-69 splits off to the east just north of Mineral Mound State Park. I-24 continues east, away from the river, through farmland for several miles, passing well south of Hopkinsville. Near the Tennessee border, I-24 passes north of Fort Campbell before crossing into Tennessee.
One of the more hazardous stretches of Interstate highway in the United States is located approximately 40 miles (64 km) west of Chattanooga on I-24 in Monteagle, where the highway crosses the Cumberland Plateau. Compared to grades elsewhere, Monteagle's 4–6% grade does not come close to the steepest (I-40 between Nashville and Knoxville features 5% grades in each direction as well as a 5% grade north of Nashville on I-24, near Joelton), but the slope is protracted over a distance of several miles. While all motorists need to exercise caution, truckers are particularly vexed by Monteagle, and many have died going through this area. As runaway trucks had been a regular and deadly occurrence, in part of the failure or inability of truckers to slow down to the 35 miles per hour (55 km/h) truck speed limit once on the slope, the eastbound lanes were rebuilt in the late 1980s. This work reduced the grade, widened the road, added a required stopping area with traffic lights for trucks prior to descending the mountain, and added two runaway truck ramps where a truck whose brakes have failed due to overheating can exit into a long pit full of loose gravel to safely stop. Owing to geography, these two ramps are on the left side of the grade. This stretch of highway inspired Johnny Cash to write a song about Monteagle Mountain. It is also mentioned in "The Legend", the introductory song for Smokey and the Bandit, which touts the protagonist's driving skill in having reportedly navigated his truck down the Monteagle Grade during a heavy rainstorm, despite an airbrake failure.
The Monteagle grade also has one of the three widest medians of any Interstate highway, with the others being I-8 through the In-Ko-Pah grade in California and I-84 through the Cabbage Hill grade east of Pendleton, Oregon. There is more than a mile between the eastbound and westbound lanes at one point. The eastbound lanes descend the mountain on one side of a ridge, while the westbound lanes ascend the other. Also of interest on Monteagle Mountain is the steep grade on I-24 north of Monteagle. This steep grade occurs for westbound traffic and features a sharp 45 mph (70 km/h) curve to the right while descending steeply at the same time. This downhill curve also features off-ramp approach style lane dividers, in order to slow both motorists and truckers. Also in Chattanooga is the "Ridge Cut", a one-quarter-mile (400 m) section of Missionary Ridge, between the 4th Avenue exit and the Germantown/Belvoir exit. Accidents and severe congestion are common here. I-124 is an occasional (currently unsigned) designation of a portion of the US 27 freeway, which runs as a spur into downtown Chattanooga and beyond.
In the state of Georgia, I-24 runs for four miles (6.4 km), running along the southern flank of Raccoon Mountain and intersecting with I-59 before turning back north to the Tennessee River and around the northern flank of Lookout Mountain. The exits remain numbered according to Tennessee's mileposts. However, the mileposts are Georgia's mileposts. This segment is also officially State Route 409.
I-24 was part of the original Interstate Highway System plan enacted in 1956. The section of I-24 in Illinois was authorized for engineering by 1966 and authorized for construction by 1968. The highway opened to traffic by 1977.
On May 18, 2010, it was announced that a sinkhole was found in the eastbound lanes of I-24 in Grundy County, Tennessee, near the exit of Tennessee State Route 50. Tennessee Department of Transportation officials stated that hole was growing with traffic diverted onto the westbound lanes. However, emergency repairs commenced and was reopened several days later.
|Illinois||Williamson||||0.00||0.00||0||I-57 – Memphis, Chicago||Westbound exit and eastbound entrance; western terminus and signed as exits 44A (south) and 44B (north); uses I-57's exit numbers|
|Johnson||||7.22||11.62||7||Tunnel Hill, Goreville|
|||13.64||21.95||14||US 45 – Vienna, Harrisburg|
|Vienna||16.00||25.75||16||IL 146 – Vienna, Golconda|
|Massac||||26.55||42.73||27||New Columbia, Big Bay||No services|
|Metropolis||37.16||59.80||37||US 45 – Metropolis, Brookport|
|Interstate 24 Bridge|
|Kentucky||McCracken||Paducah||2.958||4.760||3||KY 305 – Paducah|
|4.328||6.965||4||I-24 Bus. east / US 60 – Paducah, Wickliffe – Kentucky Oaks Mall||Western terminus of I-24 Bus.|
|7||US 45 / US 62 – Bardwell, Mayfield|
|Woodlawn-Oakdale||11.035||17.759||11||KY 1954 (Husband Road) / I-24 Bus. west – Paducah||Eastern terminus of I-24 Bus.|
|Reidland||16.153||25.996||16||US 68 – Paducah|
|Marshall||Calvert City||24.961||40.171||25||Purchase Parkway to US 62 – Fulton, Calvert City||Western end of I-69 overlap; signed as exits 25A (south) and 25B (north); temporary southern terminus of I-69|
|Calvert City||26.565||42.752||27||US 62 – Calvert City, Gilbertsville – Kentucky Dam – Kentucky Dam Village State Resort Park – Land Between the Lakes National Recreation Area|
|Livingston||Grand Rivers||30.729||49.454||31||KY 453 – Smithland, Grand Rivers – The Trace (Land Between the Lakes)||Serves Land Between the Lakes National Recreation Area|
|Lyon||Kuttawa||39.553||63.654||40||KY 93 / US 62 / US 641 – Eddyville, Kuttawa|
|||41.647||67.024||42||I-69 north / Western Kentucky Parkway east – Princeton, Elizabethtown||Eastern end of I-69 overlap; western terminus of Western Kentucky Parkway; I-69 exit 68|
|||44.732||71.989||45||KY 293 to KY 93 – Princeton – Kentucky State Penitentiary|
|Caldwell||||55.632||89.531||56||KY 139 – Princeton, Cadiz|
|Trigg||||65.313||105.111||65||US 68 / KY 80 – Cadiz, Hopkinsville||Serves Land Between the Lakes National Recreation Area|
|Christian||||72.692||116.986||73||KY 117 – Newstead, Gracey|
|||81.243||130.748||81||Pennyrile Parkway north – Hopkinsville||Southern terminus of Pennyrile Parkway, exit 1|
US 41 Alt. – Hopkinsville, Fort Campbell
|Oak Grove||88.761||142.847||89||KY 115 – Oak Grove, Pembroke||serves the Jefferson Davis Monument State Historic Site|
|Kentucky–Tennessee state line|
|Tennessee||Montgomery||Clarksville||1.5||2.4||1||SR 48 – Clarksville, Trenton|
|4.3||6.9||4||US 79 / SR 13 – Clarksville, Guthrie|
|7.9||12.7||8||SR 237 (Rossview Road)|
|10.6||17.1||11||SR 76 – Adams, Clarksville|
|Robertson||Pleasant View||19.2||30.9||19||SR 256 (Maxey Road) – Adams|
|24.5||39.4||24||SR 49 – Pleasant View, Coopertown, Springfield, Ashland City|
|Cheatham||||31.1||50.1||31||SR 249 (New Hope Road)|
|Davidson||Nashville||35.1||56.5||35||US 431 (SR-65) / Union Hill Road – Springfield, Joelton|
|40.7||65.5||40||SR 45 (Old Hickory Boulevard)|
|43.6||70.2||43||SR 155 (Briley Parkway) – Opryland||SR 155 exits 18A-B, access to Nashville International Airport|
|45.0||72.4||44B||I-65 north – Louisville||Western end of I-65 overlap, exit 88|
|46.3||74.5||87||US 431 (Trinity Lane, SR-65)|
|47.3||76.1||46B||I-65 south to I-40 west – Memphis, Huntsville||Eastern end of I-65 overlap; south exit 86, north exit 86B|
|47.9||77.1||47A||US 41 (Ellington Parkway, SR-6) / US 431 / SR 11 to US 31E north / Spring Street|
|48.0||77.2||48||James Robertson Parkway (US 31, US 41, US 431, SR-6, SR-11) – State Capitol|
|48.7||78.4||49||Korean Vets Boulevard / Shelby Avenue – Nissan Stadium|
|49.4||79.5||50B||I-40 west to I-65 south – Memphis, Huntsville||West end of I-40 overlap, east exit 210B, west exit 211; formerly the point where I-24, I-40, and I-65 met|
|50.0||80.5||212||Hermitage Avenue (US 70, SR-24)||Westbound exit and eastbound entrance|
|50.4||81.1||212||Fesslers Lane||Eastbound exit and westbound entrance|
|51.4||82.7||52B||I-40 east – Knoxville||Eastern end of I-40 overlap, exit 213A, access to Nashville International Airport|
|51.8||83.4||52||US 41 (Murfreesboro Road, US 70S, SR-1)|
|52.6||84.7||53||I-440 west – Memphis|
|53.4||85.9||54||SR 155 (Briley Parkway)||SR 155 exits 3A-B|
|55.7||89.6||56||SR 255 (Harding Place)||Access to Nashville International Airport|
|56.8||91.4||57||Haywood Lane – Antioch||Signed as exits 57A (west) and 57B (east) eastbound|
|59.4||95.6||59||SR 254 (Bell Road)|
|60.3||97.0||60||Hickory Hollow Parkway|
|62.3||100.3||62||SR 171 (Old Hickory Boulevard)|
|Rutherford||La Vergne||64.5||103.8||64||Waldron Road – La Vergne|
|Smyrna||66.1||106.4||66||SR 266 east (Sam Ridley Parkway) – Smyrna||Signed as exits 66A (west) and 66B (east) eastbound|
|69.7||112.2||70||SR 102 (Lee Victory Parkway, Almaville Road) – Smyrna|
|Murfreesboro||74.3||119.6||74||I-840 – Franklin, Lebanon, Knoxville||Signed as exits 74A (west) and 74B (east); I-840 west exit 53, east exits 53A-B|
|75.9||122.1||76||Fortress Boulevard, Medical Center Parkway|
|77.7||125.0||78||SR 96 – Franklin, Murfreesboro||Signed as exits 78A (west) and 78B (east)|
|79.6||128.1||80||SR 99 – Murfreesboro|
|80.9||130.2||81||US 231 (SR-10) – Shelbyville, Murfreesboro||Signed as exits 81A (south) and 81B (north) eastbound|
|83.4||134.2||84||Joe B. Jackson Parkway||Signed as exits 84A (south) and 84B (north) eastbound|
|88.7||142.7||89||Buchanan Road, Epps Mill Road|
||No major junctions|
|Coffee||||96.8||155.8||97||SR 64 (Beechgrove Road) – Shelbyville|
|||105.1||169.1||105||US 41 (SR-2) – Manchester|
|Manchester||110.1||177.2||110||SR 53 – Manchester, Woodbury|
|111.0||178.6||111||SR 55 – Manchester, McMinnville||Signed as exits 111A (south) and 111B (north) eastbound|
|113.6||182.8||114||US 41 (SR-2) – Manchester, Hillsboro|
|Arnold Air Force Base||117.1||188.5||117||Arnold Air Force Base – Tullahoma|
|Grundy||Pelham||127.5||205.2||127||US 64 west / SR 50 – Pelham, Winchester||West end of US 64 overlap|
|Marion||Monteagle||134.4||216.3||134||US 41A (SR-15) – Monteagle, Sewanee|
|135.5||218.1||135||To US 41 north (SR-2 west) – Monteagle, Tracy City||West end of SR-2 overlap|
|||142.6||229.5||143||Martin Springs Road (SR-2 east)||Eastern end of SR-2 overlap|
|Kimball||151.7||244.1||152||US 64 east / US 72 (SR-27 west) to US 41 – Kimball, South Pittsburg||Eastern end of US 64 overlap; western end of SR-27 overlap|
|Jasper||155.2||249.8||155||SR 28 – Jasper, Dunlap|
|||158.1||254.4||158||SR 27 east – Nickajack Dam, Powells Crossroads||Eastern end of SR-27 overlap|
|||159.7||257.0||Interstate 24 Bridge over the Nickajack Lake|
|Haletown||160.9||258.9||161||SR 156 – Haletown, New Hope|
||No major junctions|
|Tennessee–Georgia state line|
|Georgia||Dade||||0.7||1.1||167||I‑59 south (SR-406) – Birmingham||Left exit westbound|
|||3.3||5.3||169||SR 299 to US 11 – Wildwood|
|Georgia–Tennessee state line|
|Tennessee||Hamilton||Chattanooga||2.7||4.3||174||US 41 / US 64 (US 72, SR-2) to US 11 – Lookout Valley, Lookout Mountain|
|4.0||6.4||175||Browns Ferry Road – Lookout Mountain|
|7.3||11.7||178||US 27 north (I-124 north) Downtown Chattanooga||Western end of US 27 overlap|
|7.3||11.7||178||US 11 / US 41 / US 64 (Broad Street, US 72, SR-2) – Lookout Mountain||Eastbound exit and westbound entrance|
|8.3||13.4||178||SR 58 (Market Street) to US 41 – Lookout Mountain||Westbound exit and eastbound entrance|
|9.0||14.5||180||US 27 south (Rossville Boulevard, SR-27 north) to SR 8 north / Central Avenue||Eastern end of US 27 overlap; signed as exits 180A (north) and 180B (south)|
|10.4||16.7||181A||US 41 south (US 76 east, SR-8 south) – East Ridge||Eastbound exit and westbound entrance|
|11.0||17.7||Missionary Ridge crossing|
|East Ridge||12.0||19.3||183||Germantown Road, Belvoir Avenue|
|Chattanooga||14.2||22.9||185||I-75 / US 74 east – Atlanta, Knoxville||Eastbound exit and westbound entrance; eastern terminus and signed as exits 185A (south) and 185B (north); I-75 exit 2|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
- Interstate 124 is an unsigned designation for a short segment of US 27 freeway in Chattanooga, Tennessee.
Paducah business loop
|Length:||11.2 mi (18.0 km)|
Interstate 24 Business (BL 24) is a 11-mile (18 km) business loop of I-24 that runs through downtown Paducah, Kentucky that begins at I-24 and US 60 at exit 4 and ends at I-24 and Kentucky Route 1954 (KY 1954) at exit 11. The route follows US 60, US 60 Bus., and KY 1954.
The entire route is in McCracken County.
|Paducah||0.0||0.0||I-24 – St. Louis, Nashville||Western terminus; western end of US 60 overlap|
|2.4||3.9||US 60 east||Eastern end of US 60 overlap; western end of US 60 Bus. overlap|
|2.6||4.2||US 45 (H.C. Mathis Drive)|
|8.2||13.2||US 60 / US 62||Eastern end of US 60 Bus. overlap; western end of KY 1954 overlap|
|||11.0||17.7||I-24 – Nashville, St. Louis||Eastern terminus; eastern end of KY 1954 overlap|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
- Adderly, Kevin (January 27, 2016). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2015". Route Log and Finder List. Federal Highway Administration. Retrieved September 18, 2016.
- Google (February 15, 2008). "Overview Map of Interstate 24" (Map). Google Maps. Google. Retrieved February 15, 2008.
- Illinois Department of Transportation (2010). Williamson County General Highway Map (PDF) (Map). Springfield: Illinois Department of Transportation. Retrieved January 9, 2011.
- Illinois Department of Transportation (1994). Johnson County General Highway Map (PDF) (Map). Springfield: Illinois Department of Transportation. Retrieved January 9, 2011.
- Illinois Department of Transportation (2001). Massac County General Highway Map (PDF) (Map). Springfield: Illinois Department of Transportation. Retrieved January 9, 2011.
- Google (December 22, 2013). "Interstate 24 in Kentucky" (Map). Google Maps. Google. Retrieved December 22, 2013.
- Tennessee Department of Transportation (May 1, 2007). "Fiscal Years 2008–2010 Transportation Improvement Program". Tennessee Department of Transportation.
- Office of Secretary of State (1967). Illinois Blue Book, 1967–1968. State of Illinois. p. 746. Retrieved January 9, 2011 – via Illinois Digital Archives.
- Office of Secretary of State (1965). Illinois Blue Book, 1965–1966. State of Illinois. p. 720. Retrieved January 9, 2011 – via Illinois Digital Archives.
- Illinois Automobile Department (1977). Illinois Highway Map (Map). 1:762,500. Springfield: Illinois State Library. Retrieved January 9, 2011 – via Illinois Digital Archives.
- "Sinkhole Forces I-24 Closure in Grundy County". Nashville, TN: WTVF-TV. May 18, 2010. Retrieved May 18, 2010.
- "Sinkhole Repaired, I-24 Reopens". Chattanooga Times Free Press. May 22, 2010. Retrieved June 26, 2010.
- Illinois Technology Transfer Center (2013). "T2 GIS Data". Illinois Department of Transportation. Retrieved September 2, 2015.
- Kentucky Transportation Cabinet. "Official DMI Route Log". Kentucky Transportation Cabinet. Retrieved October 23, 2013.
- Long Range Planning Division-Mapping Section (2013). Official Transportation Map (Map). c. 1:633,600. Tennessee Department of Transportation. Retrieved December 21, 2013.
- Google (July 4, 2014). "Business Loop 24" (Map). Google Maps. Google. Retrieved July 4, 2014.
|Wikimedia Commons has media related to Interstate 24.|
- Geographic data related to Interstate 24 at OpenStreetMap
- Illinois Highway Ends: Interstate 24
- Official State of Tennessee Road Map
|Browse numbered routes|
|← IL 23||Illinois||US 24 →|
|← US 23||Kentucky||US 25 →|
|← US 23||Tennessee||US 25 →|
|← US 23||Georgia||US 25 →|